package com.wyh.springcloud.order.controller;


import com.wyh.springcloud.order.lb.impl.MyLoadBalancerImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import pojo.CommonResult;
import pojo.Payment;

import java.net.URI;
import java.util.List;

/**
 * @author wyh
 * @version 1.0
 * @date 2021/11/2 17:12
 */
@RestController
@Slf4j
public class OrderController {

    public static final String PAYMENT_URL = "http://localhost:8001";
    //public static final String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private DiscoveryClient discoveryClient;

    @Autowired
    private MyLoadBalancerImpl myLoadBalancer;

    @GetMapping(value = "/consumer/payment/add")
    public CommonResult<Payment> add(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL+"/payment/add",payment,CommonResult.class);
    }

    @GetMapping(value = "/consumer/payment/findAll")
    public CommonResult<Payment> findAll(){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/findAll",CommonResult.class);
    }

    @GetMapping(value = "/consumer/payment/getPaymentById/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/getPaymentById"+id,CommonResult.class);
    }

    @GetMapping(value = "/consumer/paymentEntity/findAll")
    public CommonResult<Payment> findAllEntity(){
        ResponseEntity<CommonResult> entity = restTemplate.getForEntity(PAYMENT_URL + "/payment/findAll", CommonResult.class);
        if (entity.getStatusCode().is2xxSuccessful()){
            return entity.getBody();
        }else {
            return new CommonResult<Payment>(444,"操作失败");
        }
    }

    @GetMapping(value = "/consumer/payment/lb")
    public String lbPort(){
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if (instances == null || instances.size()<=0){
            return null;
        }


        ServiceInstance serviceInstance = myLoadBalancer.instances(instances);
        URI uri = serviceInstance.getUri();
        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }

    @GetMapping(value = "/consumer/payment/zipkin")
    public String zipkin(){
        return restTemplate.getForObject(PAYMENT_URL + "/payment/zipkin", String.class);
    }
}
